Answer:
25
Step-by-step explanation:
The parallel lines divide the sides proportionally, so ...
DC/DQ = CR/QB
x/40 = 15/24
x = 40(15/24) . . . . multiply by 40
x = 25
-5,3
c = 50
Using the Pythagorean Theorem:
Plug in the values of a = 14, and b = 48